| http://www.w3.org/ns/prov#value | - I hope your grandmother-in-law is cognisant of this:Wood smoke contains over 100 different chemicals and compounds, including dioxin, as well as lead, cadmium and arsenic, carbon monoxide, methane, VOCs (C2-C7), aldehydes, formaldehyde, acrolein, propionaldehyde, butyl aldehyde, acetaldehyde, furfural, substituted furans, benzene, alkyl benzenes, toluene, acetic acid, formic acid, nitrogen oxides
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